Global Patent Index - EP 4164255 A1

EP 4164255 A1 20230412 - 6DOF RENDERING OF MICROPHONE-ARRAY CAPTURED AUDIO FOR LOCATIONS OUTSIDE THE MICROPHONE-ARRAYS

Title (en)

6DOF RENDERING OF MICROPHONE-ARRAY CAPTURED AUDIO FOR LOCATIONS OUTSIDE THE MICROPHONE-ARRAYS

Title (de)

6DOF-WIEDERGABE VON DURCH MIKROFONANORDNUNG ERFASSTEM AUDIO FÜR ORTE AUSSERHALB DER MIKROFONANORDNUNGEN

Title (fr)

RENDU 6DOF D'AUDIO CAPTURÉ PAR RÉSEAU DE MICROPHONES POUR DES EMPLACEMENTS EN DEHORS DES RÉSEAUX DE MICROPHONES

Publication

EP 4164255 A1 20230412 (EN)

Application

EP 21201766 A 20211008

Priority

EP 21201766 A 20211008

Abstract (en)

An apparatus for generating a spatialized audio output based on a listener position, the apparatus comprising means configured to: obtain two or more audio signal sets, wherein each of the two or more audio signal sets is associated with a respective audio signal set position; obtain a listener position within an audio environment, wherein the audio environment comprises one or more area having one or more inside and outside regions in relation to the respective audio signal set positions, wherein the inside region is defined by the respective audio signal set positions; obtain, for at least two of the two or more audio signal sets, metadata based on a processing of the at least two audio signals of the at least two of the two or more audio signal sets; determine, for the listener position within an audio environment outside the inside region, a second listener position, the second listener position being located in the outside region and closer towards a boundary of the one or more inside and outside region, or on the boundary, or within the one or more inside region; determine modified metadata for the second listener position based on the metadata; determine at least two modified audio signals for the second listener position based on the at least two audio signals; determine spatial metadata for the listener position based on the modified metadata for the second listener position; and output the at least two modified audio signals and the spatial metadata.

IPC 8 full level

H04S 7/00 (2006.01)

CPC (source: EP US)

H04R 3/005 (2013.01 - US); H04R 5/027 (2013.01 - US); H04S 3/008 (2013.01 - US); H04S 7/303 (2013.01 - EP); H04S 7/304 (2013.01 - EP US); H04S 7/306 (2013.01 - EP); H04R 2201/401 (2013.01 - US); H04S 2400/01 (2013.01 - US); H04S 2400/11 (2013.01 - US); H04S 2400/15 (2013.01 - US); H04S 2420/11 (2013.01 - US)

Citation (applicant)

  • GB 202002710 A 20200226
  • WO 2018091776 A1 20180524 - NOKIA TECHNOLOGIES OY [FI]
  • GB 2572368 A 19680529
  • WO 2019086757 A1 20190509 - NOKIA TECHNOLOGIES OY [FI]
  • PULKKI, VILLE: "Spatial sound reproduction with directional audio coding", JOURNAL OF THE AUDIO ENGINEERING SOCIETY, vol. 55, no. 6, 2007, pages 503 - 516
  • ARCHONTIS POLITISJUHA VILKAMOVILLE PULKKI: "Sector-based parametric sound field reproduction in the spherical harmonic domain", IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING, vol. 9, no. 5, 2015, pages 852 - 866, XP011662882, DOI: 10.1109/JSTSP.2015.2415762
  • LAITINEN, M.V.: "Master's thesis", 2008, HELSINKI UNIVERSITY OF TECHNOLOGY, article "Binaural reproduction for directional audio coding", pages: 54 - 55

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4164255 A1 20230412; CN 115955622 A 20230411; US 2023110257 A1 20230413

DOCDB simple family (application)

EP 21201766 A 20211008; CN 202211224290 A 20221008; US 202217960459 A 20221005